CN1929014B - Audio player device - Google Patents

Audio player device Download PDF

Info

Publication number
CN1929014B
CN1929014B CN2006101281120A CN200610128112A CN1929014B CN 1929014 B CN1929014 B CN 1929014B CN 2006101281120 A CN2006101281120 A CN 2006101281120A CN 200610128112 A CN200610128112 A CN 200610128112A CN 1929014 B CN1929014 B CN 1929014B
Authority
CN
China
Prior art keywords
data
auxiliary
channel data
input
voice data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2006101281120A
Other languages
Chinese (zh)
Other versions
CN1929014A (en
Inventor
直田清吾
川岛一郎
后藤宏之
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Socionext Inc
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of CN1929014A publication Critical patent/CN1929014A/en
Application granted granted Critical
Publication of CN1929014B publication Critical patent/CN1929014B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
    • G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
    • G11B27/3063—Subcodes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2545—CDs

Abstract

When underflow of a sub-Q data table occurs, a sub-Q data processing section does not read and output sub-Q data but outputs only audio data. Moreover, to achieve consistency between audio data and the sub-Q data in terms of buffer management, an input processing section includes respective counters for managing respective input data amounts of the audio data and the sub-Q data. Then, the input processing section executes management so that overflow and underflow of the sub-Q data table are suppressed as much as possible and a switch changes an IEC output mode at a time of audio processing and a time of dubbing. Thus, sound deterioration, and error recording in equipment to which the audio player is connected, and the like can be prevented.

Description

Audio player
Technical field
The present invention relates generally to Digital Signal Processing, particularly can receive the management method and the output processing of voice data and auxiliary Q channel data in the equipment of outside input of DAB.
Background technology
In music CD, record the auxiliary Q channel data that is different from voice data in the Q sound channel behind the son coding (sub-coding).Identification between the song when this auxiliary Q channel data is used for the recovery time demonstration or duplicates (dubbing).In the past, known have: system's (with reference to patent documentation 1) that voice data and auxiliary Q channel data are also exported synchronously.
In recent years, not only popularize corresponding to optical disc reproducing but also corresponding to the equipment of external digital audio frequency input.The form input of DAB from the outside input to stipulate IEC60958 or the IEC61937.When the data of input are carried out some sound equipments processing, need from the IEC form, extract voice data.And, in the IEC form, except that voice data, be added with supplementarys such as sound channel state, user data, when using these information in the regeneration, also need to cooperate voice data to extract supplementary.The data that extract are respectively by other buffer management, but after these data of inter-process, when exporting with the IEC form once more, need carry out the IEC coding to the data after extracting, separating.
Under the situation corresponding to the auxiliary Q channel data in the user data during input of external digital audio frequency, because therefore the reproduced state in the equipment that receiver side does not know to be connected needs all the time with auxiliary Q sound channel input pattern action.But the medium of regenerating in the equipment that is connected is under the music CD situation in addition, and auxiliary Q channel data is underlapped in user data.During regeneration music CD, owing to necessarily exist auxiliary Q channel data therefore no problem, even but do not import the problems such as staccato that voice data also can not take place under the situation of auxiliary Q channel data when needing to consider to accept input from the outside.And,, voice data produces deviation in case separating with supplementary in inside, be difficult to correctly obtain both also output with the IEC form once more synchronously, therefore with the output of regenerating unit and then be connected in external unit and when using, externally equipment side may mistake carry out track (track) management in duplicating purposes.
In above-mentioned existing systems, externally the DAB input time is carried out auxiliary Q channel data in the user data at once, and staccato may take place.And, handle in order to carry out sound equipment, in case, also can produce deviation even then carry out the IEC coding once more in output stage because voice data separates with auxiliary Q channel data.Therefore, when duplicating of music CD used in the purposes, there is the problem of the skew of the identification point between song in the equipment of accepting side.
Patent documentation 1: the spy opens the 2001-155432 communique
Summary of the invention
The present invention addresses this is that, but and by possessing the interface of assigned I EC output mode, thereby the audio player with versatility is provided.
To achieve these goals, audio player of the present invention possesses the function that detects auxiliary Q channel data underflow, the input handling part comprises the counter of the input data volume that is used to manage separately for the matching on the buffer management that obtains voice data and auxiliary Q channel data.And, can select sound equipment tupe and Direct Model from the outside of reproducing unit.
According to audio player of the present invention, for auxiliary Q channel data table does not overflow, underflow, and when sound equipment is handled, switch to the IEC output mode when duplicating by management, thereby prevent the misdescription record etc. in the equipment of staccato, connection destination.And,, can provide system with versatility by selecting the output intent of IEC output from the outside.
Description of drawings
Fig. 1 is the circuit block diagram of the configuration example of expression audio player of the present invention;
Fig. 2 is the process flow diagram of the processing sequence of the auxiliary Q channel data handling part in the presentation graphs 1;
Fig. 3 is the process flow diagram of expression according to the processing sequence of the underflow inhibition of the auxiliary Q channel data table of the input handling part among Fig. 1;
Fig. 4 is the process flow diagram of expression according to the processing sequence of overflowing inhibition of the auxiliary Q channel data table of the input handling part among Fig. 1;
Fig. 5 is the synoptic diagram of example of representing the virtual distinguishing mark insertion position of auxiliary Q channel data;
Fig. 6 is the auxiliary Q channel data table among Fig. 1 and the associated diagram of voice data memory buffer unit.
Among the figure: the 101-control part, the 102-reproducing unit, the 103-data reception portion, 104-imports handling part, 105-assists Q channel data table, and 106-assists Q channel data handling part, 107-voice data memory buffer unit, 108-sound equipment handling part, 109-DAB output dip switch, A-DAB input data, B, C, D, E, F-assists the Q channel data, G, H, the I-voice data, J-DAB output data, K-analogue audio frequency output data, L-threshold value control signal, the DAB output data that the processing of M-sound equipment finishes, N-DAB output switch-over control signal.
Embodiment
Below, with reference to the description of drawings embodiments of the present invention.
Fig. 1 represents the configuration example of audio player of the present invention.The audio player of Fig. 1 is made of control part 101 and reproducing unit 102 substantially.Reproducing unit 102 is made of data reception portion 103, input handling part 104, auxiliary Q channel data table 105, auxiliary Q channel data handling part 106, voice data memory buffer unit 107, sound equipment handling part 108 and change-over switch 109.A is DAB input data, B, C, D, E, F are auxiliary Q channel datas, G, H, I are voice datas, J is the DAB output data, K is the analogue audio frequency output data, L is the threshold value control signal, and M is that use data, N be that DAB is exported switch-over control signal for DAB output that the sound equipment processing finishes.
Data reception portion 103 is extracted voice data G and auxiliary Q channel data B from DAB input data A.104 pairs of handling parts of input manage data storage in auxiliary Q channel data table 105 and voice data memory buffer unit 107.The voice data of storage carries out the sound equipment processing in 108 pairs of voice data memory buffer units 107 of sound equipment handling part.Auxiliary Q channel data handling part 106 carries out the auxiliary Q channel data of storage in the auxiliary Q channel data table 105 and the voice data processing of output synchronously.
The stream of data M after 109 pairs of DAB output datas of switch J selection sound equipment is handled or the data A that is imported.Thus, can handle when duplicating etc. at DAB output and need be the direct situation of output of the data of input.And, by from the changeable switch 109 of the control signal N of control part 101, thereby the analogue audio frequency output data K output that can become loudspeaker output is carried out the data after sound equipment is handled, the use that DAB output data J directly exports the data of input by sound equipment handling part 108.
Fig. 2 is the processing flow chart of the auxiliary Q channel data handling part 106 among Fig. 1.When auxiliary Q channel data handling part 106 detects the underflow (under flow) of auxiliary Q channel data table 105, do not assist the Q channel data to read.Thus, even during the auxiliary Q channel data of input, output does not produce influence such as staccato and can regenerate normally to voice data yet.
Fig. 3 is the treatment scheme according to the underflow inhibition of the auxiliary Q channel data table 105 of the input handling part 104 among Fig. 1.After in input handling part 104, storing into voice data in the impact damper 107, upgrade voice data and import big or small counter.Then, the auxiliary Q channel data with input stores in the auxiliary Q channel data table 105.It is the counter whether the input number that is used for managing sound data and auxiliary Q channel data exists deviation that voice data is imported big or small counter, auxiliary Q channel data input counter.Confirm the difference of these two counters, the input of comparing auxiliary Q channel data with the input of voice data in order to obtain the matching with the voice data amount, is stored the auxiliary Q channel data of virtual (dummy) in the auxiliary Q channel data table 105 into more after a little while.Thus, can prevent the underflow of auxiliary Q channel data table 105, thereby the output of voice data do not produced influence such as staccato and can regenerate normally.
Fig. 4 is the treatment scheme that (over flow) suppresses of overflowing according to the auxiliary Q channel data table 105 of the input handling part 104 among Fig. 1.Input handling part 104 affirmation voice datas are imported the difference of big or small counter and auxiliary Q channel data input counter, the input of comparing voice data with the input of auxiliary Q channel data more after a little while, in order to obtain the matching with the voice data amount, discard the processing of auxiliary Q channel data.Thus, can prevent overflowing of auxiliary Q channel data table 105, thereby the output of voice data do not produced influence such as staccato and can regenerate normally.
Input handling part 104 preferably includes: can by control part 101 will be in the explanation of Fig. 3 and Fig. 4 the storage of auxiliary Q channel data table 105 judge the interface that employed threshold value is accepted as control signal L.Thus, threshold value can change according to each size of voice data memory buffer unit 107, auxiliary Q channel data table 105, and can specify the optimum value corresponding to system.
In the treatment scheme of Fig. 3, in order to assist the virtual data that inserts in the management of Q channel data table 105 by auxiliary Q channel data handling part 106 identifications, virtual distinguishing mark is inserted in preferred untapped zone in auxiliary Q channel data as shown in Figure 5.Auxiliary Q channel data shown in Figure 5 is by CONTROL zone (4), ADDRESS zone (4), 9 data area (72) and CRC zone (16) formations that 8 bit fields constitute.The data area is divided into: track number (TNO) portion, index (INDEX) portion, elapsed time (MIN) portion, elapsed time (SEC) portion, elapsed time (FRAME) portion, ZERO portion, absolute time (AMIN) portion, absolute time (ASEC) portion and absolute time (AFRAME) portion.Constituting by complete 08, inserting virtual distinguishing mark in the ZERO portion of common obsolete field.Thus, can whether be virtual differentiation by auxiliary Q channel data handling part 106, thereby can prevent from virtual auxiliary Q channel data is outputed to the outside.
Fig. 6 is the associated diagram of auxiliary Q channel data table 105 and voice data memory buffer unit 107 among Fig. 1.In the time of will assisting the Q channel data to store in the table 105 by input handling part 104, also corresponding registration stores the address of the voice data memory buffer unit 107 of corresponding voice data.Auxiliary Q channel data handling part 106 monitors the voice data of which position of now regenerating, by with auxiliary Q channel data table 105 in the address information contrast of voice data of registration, can not misplace when reading auxiliary Q channel data, thereby can read corresponding auxiliary Q channel data with voice data.
According to above illustrated, audio player of the present invention, when output was carried out data after sound equipment is handled to outside DAB input data, sound can not interrupt and exportable auxiliary Q channel data.And, duplicate owing to also can be used in, therefore as having multifarious audio player and useful by possessing directly the pattern that input is exported.

Claims (8)

1. audio player, it has handles carrying out sound equipment from the data of numeral input, extract the auxiliary Q channel data in the digital user data of importing simultaneously, and export the function of assisting the Q channel data synchronously with voice data, wherein should auxiliary Q channel data be used for identification between the song of recovery time when showing, this audio player comprises:
Reproducing unit; With
Control the control part of this reproducing unit,
Described reproducing unit has:
Data reception portion, it is from input extracting data voice data and auxiliary Q channel data;
Auxiliary Q channel data table, the auxiliary Q channel data that its storage is extracted;
The voice data memory buffer unit, the voice data that its storage is extracted;
The input handling part, it is to managing data storage in described auxiliary Q channel data table and described voice data memory buffer unit;
The sound equipment handling part, it carries out sound equipment to the voice data of storing in the described voice data memory buffer unit and handles; With
Auxiliary Q channel data handling part, it carries out the processing that the auxiliary Q channel data that will store in the described auxiliary Q channel data table and voice data are exported synchronously,
This audio player possesses under the situation of described auxiliary Q channel data table underflow, automatically switches to the only function of the pattern of output sound data.
2. audio player according to claim 1 is characterized in that,
Possesses following function: use voice data to import big or small counter and auxiliary Q channel data input counter by described input handling part and be judged as auxiliary Q channel data input and be less than under the situation that voice data imports the auxiliary Q channel data of storing virtual in described auxiliary Q channel data table.
3. audio player according to claim 1 is characterized in that,
Possesses following function: use voice data to import big or small counter by described input handling part and be judged as under the situation of auxiliary Q channel data input more than the voice data input, in described auxiliary Q channel data table, do not store and assist the Q channel data and carry out waste treatment with auxiliary Q channel data input counter.
4. audio player according to claim 1 is characterized in that,
Also comprise interface, it can be specified from the outside: use voice data to import big or small counter and auxiliary Q channel data input counter by described input handling part, the described voice data when carrying out virtual auxiliary Q channel data storage or waste treatment is imported the threshold value of the difference of big or small counter and described auxiliary Q channel data input counter.
5. audio player according to claim 2 is characterized in that,
Possess following function: during by the auxiliary Q channel data of described input handling part storing virtual, the regional insertion of not using in auxiliary Q channel data can be judged as virtual sign.
6. audio player according to claim 1 is characterized in that,
Possesses following function: in the time will assisting the Q channel data to store in the described auxiliary Q channel data table, also will store the address of the described voice data memory buffer unit of corresponding voice data and store into accordingly in the described auxiliary Q channel data table.
7. audio player according to claim 1 is characterized in that,
Also comprise change-over switch, it is used to realize the voice data that is extracted by described data reception portion is carried out the sound equipment processing and obtains the pattern of synchronous laggard line number word output and the pattern of digital input data being carried out Direct Digital output with the auxiliary Q channel data that extracts.
8. audio player according to claim 1 is characterized in that,
Also comprise interface, it can switch from the outside voice data that is extracted by described data reception portion is carried out the sound equipment processing and obtains the pattern of synchronous laggard line number word output and the pattern of digital input data being carried out Direct Digital output with the auxiliary Q channel data that extracts.
CN2006101281120A 2005-09-09 2006-09-04 Audio player device Expired - Fee Related CN1929014B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2005262043 2005-09-09
JP2005262043A JP2007073170A (en) 2005-09-09 2005-09-09 Voice reproduction device
JP2005-262043 2005-09-09

Publications (2)

Publication Number Publication Date
CN1929014A CN1929014A (en) 2007-03-14
CN1929014B true CN1929014B (en) 2010-07-28

Family

ID=37854951

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2006101281120A Expired - Fee Related CN1929014B (en) 2005-09-09 2006-09-04 Audio player device

Country Status (3)

Country Link
US (1) US7248548B2 (en)
JP (1) JP2007073170A (en)
CN (1) CN1929014B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017059396A1 (en) * 2015-09-30 2017-04-06 Clark Jonathan A Computer and method for transmitting confidential information in a network

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5615194A (en) * 1993-01-21 1997-03-25 Hitachi, Ltd. Disk reproducing apparatus and method for reproducing an audio signal and a subcode at N times normal speed from a disk
US5970031A (en) * 1997-09-23 1999-10-19 United Microelectronics, Corp. Compact disc player system with vibration-immune interrupted playback capability
CN1432163A (en) * 2000-04-28 2003-07-23 松下电器产业株式会社 Information distributing system, information distributing device, voice regerator, voice information service providing method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3640550B2 (en) * 1998-11-13 2005-04-20 アルパイン株式会社 Disk unit
JP2001155432A (en) 1999-11-26 2001-06-08 Matsushita Electric Ind Co Ltd Optical disk reproducing method and device therefor
KR100450796B1 (en) * 2002-01-05 2004-10-01 삼성전자주식회사 Cover plate for optical disk drive
JP2004022005A (en) * 2002-06-12 2004-01-22 Teac Corp Disk unit
KR100660837B1 (en) * 2004-04-24 2006-12-26 삼성전자주식회사 Disk Drive

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5615194A (en) * 1993-01-21 1997-03-25 Hitachi, Ltd. Disk reproducing apparatus and method for reproducing an audio signal and a subcode at N times normal speed from a disk
US5970031A (en) * 1997-09-23 1999-10-19 United Microelectronics, Corp. Compact disc player system with vibration-immune interrupted playback capability
CN1432163A (en) * 2000-04-28 2003-07-23 松下电器产业株式会社 Information distributing system, information distributing device, voice regerator, voice information service providing method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP特开2001-155432A 2001.06.08

Also Published As

Publication number Publication date
JP2007073170A (en) 2007-03-22
US20070058499A1 (en) 2007-03-15
CN1929014A (en) 2007-03-14
US7248548B2 (en) 2007-07-24

Similar Documents

Publication Publication Date Title
CN101777369B (en) The universal container of voice data
CN101038739B (en) Method and apparatus for attaching metadata
JP3451192B2 (en) Music reproducing apparatus, music reproducing method and music recording medium
CN101178921B (en) Method and system for processing audio signal
NO832347L (en) SUSTAINABLE SYSTEM FOR PROCESSING AND STORING DATA
CN1963934A (en) Method and apparatus for reproducing the information
CN100550166C (en) Information-recording apparatus and method and information reproduction device and method
CN1929014B (en) Audio player device
CN106970771A (en) Audio data processing method and device
US20010043524A1 (en) Recording apparatus, recording method, and dubbing apparatus for recording or dubbing programs and character data
JPH11265565A (en) Text displaying method and text display device
CN101540184A (en) Method and apparatus for reproducing first part of music data having plurality of repeated parts
US20100222905A1 (en) Electronic apparatus with an interactive audio file recording function and method thereof
CN100458957C (en) Recording medium, data recording device and method, data reproducing device and method, program, and recording medium
CN108966000A (en) Playback method and its device, medium, terminal
CN102238393A (en) Method and device for resynchronizing audio code streams
CN100511465C (en) Recording/reproduction device and recording/reproduction method
CN1993763B (en) Information recording device, information recording method, information reproducing device, information reproducing method
JPH0877681A (en) Apparatus and method for recording/reproducing a plurality of recording media
CN100589194C (en) Device and method for recording and reproducing data using storage medium
CN100538853C (en) The method and the device of the Input Data Buffer of control MP3 decoding device
CN100549987C (en) MP3 playback equipment and method thereof with multifile synchronous playing function
KR0144973B1 (en) Method and apparatus for power control in compact disk graphics system
KR101101951B1 (en) Database construction method for data compact disc
JP2000339930A (en) Searching apparatus, record content reproducing apparatus, search method and method for reproducing record content

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20151106

Address after: Kanagawa

Patentee after: Co., Ltd. Suo Si future

Address before: Osaka Japan

Patentee before: Matsushita Electric Industrial Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100728

Termination date: 20200904